import org.apache.tools.ant.taskdefs.condition.Os buildscript { repositories { jcenter() } dependencies { classpath 'com.android.tools.build:gradle:1.2.3' } } allprojects { repositories { jcenter() } } apply plugin: 'com.android.application' dependencies { compile fileTree(dir: 'libs', include: '*.so') } android { compileSdkVersion 17 buildToolsVersion '21.1.2' /* this stops gradle from making it's own Android.mk file */ sourceSets.main.jni.srcDirs = [] sourceSets { main { manifest { srcFile 'AndroidManifest.xml' } java { srcDir 'src' } res { srcDir 'res' } assets { srcDir 'assets' } resources { srcDir 'src' } jniLibs { srcDir 'libs' } } } /* This is important, it will run lint checks but won't abort build */ lintOptions { abortOnError false } } /* This defines the path to Android's ndk-build. */ def ndkBuildPath = plugins.getPlugin('com.android.application').sdkHandler.getNdkFolder().absolutePath + File.separator + 'ndk-build' if (Os.isFamily(Os.FAMILY_WINDOWS)) { ndkBuildPath +='.cmd' } /* This task builds the native part */ task buildNative(type: Exec,description: 'Compile JNI source via NDK') { println('executing buildNative') commandLine ndkBuildPath, '-C', file('.').absolutePath, ' SUPPORT_GPROOF=1' //'NDK_PROJECT_PATH=build','APP_BUILD_SCRIPT=src/main/jni/Android.mk'//force using appropriate Makefile } /* This task cleans the native part */ task cleanNative(type: Exec, description: 'Clean JNI object files') { println('executing cleanNative') commandLine ndkBuildPath, '-C', file('.').absolutePath, 'clean' } /* cleaning should also include cleaning native */ clean.dependsOn 'cleanNative' /* building should include native */ tasks.withType(JavaCompile){ compileTask -> compileTask.dependsOn buildNative }